Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# Querying With LINQ Now You're Querying Writing Your First LINQ Query

Posted by Erica Holland
Erica Holland
13,621 Points

Getting compiler error CS0201.

using System.Linq; List<int> numbersGreaterThanTen = new List<int>(); foreach (int number in numbers) { if (number > 10) { numbersGreaterThanTen.Add(number); } }

numbersGreaterThanTen List<int>(3) { 16, 32, 64 } from number in numbers where number > 10 select number; (1,1): error CS0201: Only assignment, call, increment, decrement, await, and new object expressions can be used as a statement

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

To properly display posted code, always use the instructions for code formatting in the Markdown Cheatsheet pop-up below the "Add an Answer" area. :arrow_heading_down:   Or watch this video on code formatting.

But a much better way to share code from a workspace is to use the "snapshot" function and post the link it gives you.

1 Answer

Evan O'Hara
Evan O'Hara
7,372 Points
Evan O'Hara
Evan O'Hara
7,372 Points

The reason this is happening probably has to do with how their workspace is setup to simplify some things. I got this in Visual Studio by declaring numbersGreaterThanTen as an IEnumerable<int>.

So working in Visual Studio is gonna be something like this:

List<int> numbers = new List<int> { 2, 4, 8, 16, 32, 64 }; IEnumerable<int> numbersGreaterThanTen = new List<int>(); numbersGreaterThanTen = from number in numbers where number > 10 select number;